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EN31 Hot Forged Spheroidized Annealed Alloy Bearing Steel Round Bar

Group Hot Forged Steel Bars
Min. Order 3 metric ton
Terms of Payment L/C, D/A, D/P
Update Time 2019-06-10
Item specifics
Diameter range:100-850 mm
Length range:1-18 meter
Delivery conditionhot forged+spheroidized anealed
Surface conditionBlack, Peeled, grinded

Introduction:

EN 31 is a excellent high carbon alloy steel which offers a high measure of hardness with compressive strength and abrasion resistance.
This Grade is quite often used for wear resisting machine constituents and for press instruments which don't advantage a extra complex satisfactory.

Application:

Acceptable for many automobile applications such as heavy duty gear, shaft, pinion, camshafts, gudgeon pins. / Machining components.

Steel & Chemical:

EN 31

C 0.90-1.20%

Si 0.10-0.35%

MN 0.30-0.75%

S 0.050% max

P 0.050% max

Cr 1.00-1.60%

Heat treatment:

Soft annealing °C

Cooling

Hardness HB

780-800

Furnace

max. 207

 

Stress-relief annealing °C

Cooling

600 - 650

Furnace

 

1st pre-heating °C

2nd and 3rd

Hardening °C

Quenching

Tempering °C

Hardness after Teperature HRC

up to approx. 400 in an air-circulating furnace

800 and 900

800-820

810 °C Oil ,Quench

at least twice 150-200

61 – 63